Metallic truck-frame



(No Model.) 3 sheets sheet 1.

O. T. SGHOEN. I METALLIC TRUCK FRAME.

No. 563,072. Patented June 30, 1896.

(No Model.) 3 Sheets-Sheet 2.

O. T. SOHOEN. METALLIC TRUCK FRAME.

Patented June 30, 1896.

Q mwaw/ ANDRFN B {,HAIOAM. PHOTO-UHQWASIIING'ON. D C

(No Model.) 3 Sheets-Sheet 3. C. T. SCHOEN. METALLIC TRUCK FRAME.

Patented June 30, 1896.-

ANDREW BJSRAHAM. PHUTO'LMIQWASMINGTDN. c

UNITED STATES PATENT OFFICE.

CHARLES T. SCHOEN, OF PHILADELPHIA, PENNSYLVANIA.

METALLIC TRUCK-FRAM E.

SPECIFICATION forming part of Letters Patent No. 563,072, dated June 30, 1896. Application filed April 28,1896. Serial No. 589,408. (No model.)

To all whom it 71mg concern:

Be it known that I, CHARLES T. SoHoEN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania,have invented a certain new and useful Improvement in Metallic Truck-Frames for Railway-Cars, of which the following is a full, clear, and exact description.

This invention relates to truck-frames for railway-cars, and more especially to such frames for use upon freight-cars.

The object of the invention is to provide a built-up truck-frame of pressed steel, as distinguished from those truck-frames in which the sides or the sides and transoms are of solid pressed steel, or of one piece of pressed steel.

The present invention is an improvement in the details of construction on the built-up pressed-steel truck-frame of my Letters Patent No. 553,431, dated January 21, 1896.

In the present invention each side is composed of an upper chord or compression member, made in the form of an inverted channel, and having its ends bent down vertically to form the outer members or jaws of the pedestals; a lower chord or tensile member of flat metal having its ends bent up vertically to form in connection with angle pieces or braces the inner members or jaws of the pedestals, and its extreme ends bent out horizontally to form the upper inner portion of the pedestals; a one piece diaphragm inwardly flanged around its four sides and riveted to the upper and lower chords between the pedestals, and. stay-bolts to close the bottoms of the pedestals. The transoms are channel-beams whose ends are provided with flanges by which they may be bolted or riveted to the diaphragms. The flanged gusset-plates or connection-plates are applied to the transoms and extend laterally therefrom to the inner jaws or members of the pedestals.

In the accompanying drawings, illustrating my invention, in the several figures of which like parts are similarly designated, Figure 1 is a perspective view. Fig. 2 is a half plan and section, the section being taken in the plane of line 2 2, Fig. 3. Fig. 3 is a half end elevation and section, the section being taken in the plane of line 3 3, Fig. 2; and Fig. 4 is a side view, half of which is in elevation and the other half in section, the section being taken in the plane of line 4 4:, Fig. 2.

The two sides or side frames being alike, the description of one applies to both. The upper, top, or compression member or chord a is made as an inverted channel, preferably of plate-steel pressed to shape, although it may be made of other suitable metal and by other processes, and this statement applies to the other various parts of the invention. The ends a of the top chord are bent down vertically to form the outer members or jaws of the pedestals. The lower, bottom, or tensile member or chord b is of flat metal, and has its ends b bent up vertically to form in conjunction with angle pieces or braces hereinafter described the inner members or jaws of the pedestals, and the extremities of this tensile member are bent out horizontally at b to form the tops of the pedestals, the said portions 1) being riveted, bolted, or otherwise rigidly united to the top chord.

The space between the top and bottom chords is filled in with aone-piece diaphragm c, which is made with the inturned flange around its four sides, and by means of this flange, which flts snugly against the said chords, the said diaphragm and the chords may be riveted, bolted, or otherwise rigidly united. The function of the diaphragm is to' strengthen or reinforce and render stiff and rigid the chords and pedestals, and, as will presently appear, these diaphragms serve to receive the transoms for uniting the opposite side frames of a truck-frame. Angle pieces or braces d, hereinbefore referred to, are riveted to the lower chord by the rivets which unite the lower chord and the diaphragm, and constitute the lower portions of the inner jaws of the pedestals. Stay-bolts e extend through these angle-pieces and across the lower ends or mouths of the pedestals and are removably secured on the outside of the pedestals, as by nuts andkeys. Wear-plates f are inserted in the pedestals and upon opposite sides thereof, and are held in place by the stay-bolts before the boxes are inserted.

The transom is composed of channel-beams g, which are counterparts and arranged with their flanges opposite. The sides of these channelbeams are provided with lateral flanges g, extending outwardly, so as to lie too parallel with the diaphragms, and these flanges g, as well as the bottom and top flanges, are riveted, bolted, or otherwise rigidly secured to the sides. In order to reinforce the angle between the bodies of the channel-beams and their flanges g, I provide the bosses g The transom is shown as braced centrally and to receive the king-bolt by means of flanged tie-plates riveted thereto and having inwardly-embossed portions to serve as a socket for the king-bolt or center pin.

The flanged gusset-plates or connectionplates h are riveted to the transom, and extend out laterally therefrom to or nearly to the inner jaws of the pedestals, and are riv eted to the side frames within the diaphragms, thus serving effeetuallyto brace, strengthen, or reinforce and connect the transom and the side frames.

I have shown side bearingst', which may be of approved construction, secured to the transom above the gusset-plates; also loops 7 on the sides of the transom to receive the hangers of the brake-beams, and also the center bearingplatc 70, mounted upon a spacingplate Z, all in accordance with patents heretofore granted to me.

The advantages of the present invention are similar in kind to those enumerated as pertaining to the invention forming the sub ject of Patent No. 553,431, hereinbefore referred to. Moreover, it is to be noted that if by accident it becomes necessary to repair the side frame or any other part of this truckframe it can be done in the shops of the railroad companies,whereas were the frame made solid or of one piece, if distorted by accident, it could only be put into shape again by subjecting it to the action of the dies by which it was originally formed, and thereby necessitating the sending of the damaged truck to the manufacturer, thus not only involving the cost of repairs, but the additional cost of transportation and loss of time.

Byplacing the flanges of the channels composing the transom toward each other, the body of metal composing the web of each channel is placed farthest from the neutral axis, and thereby the transom is made stronger to resist transverse strains, and also a much greater clearance is obtained between the transoms and the wheels for the brake-beams and brake-shoes than is possible where the flanges of the transom-channels turn outward, that is to say, toward the wheels.

What I claim is 1. A built-up or composite side frame for railway-car trucks, comprising a compression member or top chord, of inverted-channel form, and having its ends bent down vertically to form the outer jaws or members of the pedestals, a bottom or tensile chord, of flat metal, having its ends bent up vertically to form parts of the inner members or jaws of the pedestals and terminating in horizontal portions which form the tops of the pedestals, and a one-piece diaphragm having its four edges flanged inwardly, the chords and the diaphragm being riveted or otherwise rigidly united, substantially as described.

2. The combination with side frames constructed essentially as described, of a transom composed of two channel-beams, having their flanges turned toward one another, and

provided with end flanges by means of which the said transom and the side frames maybe riveted together, substantially as described.

3. The combination with side frames constructed essentially as described, of a transom composed of two channel-beams having their flanges turned toward one another, and provided with end flanges, and gusset-plates flanged to embrace the transom and having lateral flanges extending from the transom outwardly toward and near to the pedestals, the end flanges of the transom and the lateral flanges of the gusset-plates being riveted to the side frames, substantially as specified.

4:. A built-up or composite side frame for railway-car trucks, comprising a compression member or top chord, of inverted-channel form, and having its ends bent down vertically to form the outer jaws or members of the pedestals, a bottom or tensile chord of flat metal, having its ends bent up vertically to form parts of the inner jaws or members of the pedestals and ending in horizontal por-v tions at the tops of the pedestals, a one-piece diaphragm having its four edges flanged inwardly, angle pieces or braces having vertical portions alined with the vertical portions of the bottom chord to complete the inner jaws or members of the pedestals, the chords, diaphragm and angle pieces or braces being riveted or otherwise rigidly united, and staybolts passed through the said angle pieces or braces and the outer jaws of the pedestals, the said chords, diaphragm, and angle pieces or braces being of pressed steel, substantially as described.

In testimony whereof I have hereunto set my hand this 25th day of April, A. D. 1896.

. CHARLES T. SGIIOEN.

\Vitnesses:

FREDERICK H. F. JONES, CHAS. W. BERESFORD. 

